Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Pedro Luis Grande"'
Publikováno v:
arXiv:2209.14027 [cond-mat.mtrl-sci]: https://arxiv.org/abs/2209.14027
We have measured the electronic energy-loss straggling of protons, helium, boron and silicon ions in silicon using a transmission time-of-flight approach. Ions with velocities between 0.25 and 1.6 times the Bohr velocity were transmitted through sing
Autor:
I. Alencar, Ricardo Meurer Papaléo, Raquel Prado Thomaz, L. I. Gutierres, Pedro Luis Grande, Nathan Willig Lima, Diego Teixeira, Christina Trautmann
Publikováno v:
Current Applied Physics. 32:91-97
Surface damage produced by single MeV-GeV heavy ions impacting ultrathin polymer films has been shown to be weaker than those observed under bulk (thick film) conditions. The decrease in damage efficiency has been attributed to the suppression of lon
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 497:70-77
In this work we investigate the energy-loss straggling of low and medium energy protons on available simple materials (C, Al, Si, Ni, Cu, Zn, Ge, Se, Pd, Ag, Sb, Pt, Au, Pb) and demonstrate that the well-known Yang-O’Connor-Wang empirical formula f
Autor:
Pedro Luis Grande, Maarten Vos
Publikováno v:
Journal of Physics and Chemistry of Solids. 133:187-196
The dielectric function is often known in the optical limit (zero momentum) but knowledge away from zero momentum is required for the calculation of many physical properties, such as ion stopping and inelastic mean free path. We review the several ex
Autor:
Henrique Trombini, Rory Megginson, Stephen M. Francis, V.Z.C. Paes, Andrew Rossall, Pedro Luis Grande, J. A. van den Berg, Federico Grillo, Christopher J. Baddeley
RM and FG acknowledge funding from EPSRC grants (RM: EP/506631/1; FG: EP/M029077/1). JAvdB and AKR acknowledge the EPSRC funding for the use of the MEIS facility at the University of Huddersfield within grant EP/M029077/1. This study was financed in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::036aa731d1f9dca308f76b0481426415
https://hdl.handle.net/10023/26266
https://hdl.handle.net/10023/26266
Angle-dependent charge exchange and energy loss of slow highly charged ions in freestanding graphene
Autor:
Friedrich Aumayr, Richard A. Wilhelm, Anna Niggas, Sascha Creutzburg, Pedro Luis Grande, David Weichselbaum
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The scattering of ions in solids is accompanied with momentum transfer and electronic excitations resulting in the slowing down of the ion. The amount of energy transferred in a single scattering event depends on the particular trajectory which can b
Fluorination of graphene leads to susceptibility for nanopore formation by highly charged ion impact
Autor:
Stefan Facsko, M. Kalbac, Richard A. Wilhelm, Denise Erb, I. Jirka, Pedro Luis Grande, René Heller, Friedrich Aumayr, René Hübner, Anna Niggas, M. Mergl, S. Creutzburg
Publikováno v:
Physical Review Materials. 5
The formation of nanopores by highly charged ion impacts on freestanding fluorine-functionalized graphene is demonstrated. The process is driven by potential sputtering, which becomes active by changing the semimetallic property of graphene into a st
Publikováno v:
Surface and Interface Analysis. 51:712-721
Autor:
Pedro Luis Grande, G.G. Marmitt, Milena Cervo Sulzbach, Henrique Trombini, Felipe Ferreira Selau, Robert Elliman, Maarten Vos, Luis Gustavo Pereira
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
Oxygen self-diffusion was investigated in TiO2 layers employed for resistive-switching memories using resonant nuclear reaction profiling (NRP) and 18O labeling. The layers were grown using physical vapor deposition technique (sputtering) and were po
Autor:
Pedro Luis Grande, Maarten Vos
Publikováno v:
Journal of Physics and Chemistry of Solids. 124:242-249
Many aspects of the interaction of charged particles with matter can be expressed in terms of the dielectric function e ( q , ω ) . The dielectric function is relatively well known in the optical limit ( q = 0 ) but, for example, stopping power calc